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Earlier this week, Linn's Stamp News reported that it had spoken with a representative from the U.S. Postal Service (USPS) about a commemorative reprisal of classic-era U.S. stamps that were released ...
This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...
- a printing process that uses an etched or engraved plate; the plate is smeared with ink and wiped clean, then the ink left in the recesses makes the print ...
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